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How do I choose between Semaphore and SemaphoreSlim?
...lim does not permit named semaphores, which can be system-wide. This would mean that a SemaphoreSlim could not be used for cross-process synchronization.
The MSDN documentation also indicates that SemSlim should be used when "wait times are expected to be very short". That would usually dovetail ni...
Get cursor position (in characters) within a text Input field
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@Michael Scheper - You mean 'el' for element and 'val' for value? Those are pretty common...
– user2782001
Feb 5 '16 at 2:22
9
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How to obtain the number of CPUs/cores in Linux from the command line?
...th the /proc/cpuinfo-based answers is that they parse information that was meant for human consumption and thus lacks a stable format designed for machine parsing: the output format can differ across platforms and runtime conditions; using lscpu -p on Linux (and sysctl on macOS) bypasses that proble...
Where can I find documentation on formatting a date in JavaScript?
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MM mean 01-12, not 1-12: 2013-04-17 => OK 2013-4-17 => BAD
– Adrian Maire
Apr 17 '13 at 9:10
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Java JUnit: The method X is ambiguous for type Y
...ssertEquals(Object, Object) is ambiguous for the type ...
What this error means is that you're passing a double and and Double into a method that has two different signatures: assertEquals(Object, Object) and assertEquals(double, double) both of which could be called, thanks to autoboxing.
To avoi...
Using an if statement to check if a div is empty
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if( $('#leftmenu:empty').length ) {
// ...
Keep in mind that empty means no white space either. If there's a chance that there will be white space, then you can use $.trim() and check for the length of the content.
if( !$.trim( $('#leftmenu').html() ).length ) {
// ...
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Generating v5 UUID. What is name and namespace?
..."arbitrary" (octet) string from the perspective of the uuid algorithm. Its meaning however depends on your application. It could be a filename within a logical directory, object-id within an object-store, etcetera.
While this works well for a moderately large number of namespaces and keys, it event...
What exactly is Python's file.flush() doing?
...ted by the runtime/library/language that you're programming against and is meant to speed things up by avoiding system calls for every write. Instead, when you write to a file object, you write into its buffer, and whenever the buffer fills up, the data is written to the actual file using system cal...
On showing dialog i get “Can not perform this action after onSaveInstanceState”
...o ignore the error? What happens when you do? After all, when clicking, it means that the activity is live and well... Anyway, I've reported about this here because I consider this a bug: code.google.com/p/android/issues/detail?id=207269
– android developer
Apr...
best practice to generate random token for forgot password
...the "Remember Me" feature. Why not to use the unique id as the selector? I mean, the primary key of the account_recovery table. We don't need additional layer of security for the selector, do we? Thanks!
– Andre Polykanine
May 28 '17 at 21:31
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